Motor vehicle and jack lifting connection



July 19,1949. F. w. COFFING MOTOR VEHICLE AND JACK LIFTING CONNECTION Filed Oct. 50 1944 IN VEN TOR.

FREDR/CK Hf ('orFx/va.

Patented July 19, 1949 rains.

oron VEHICLE AND JACK L FH G oonNEorroN Eredrie fins ll le, 1 L ssi n)? to. C 1?- fing H is mp ct n e le a i e tion Application October 30, 1944, Serial No. 561,097

seams -25 3 This invention relates to a jack structure for motor vehicles.

This application is a continuation-in-part of the copending application, Serial No. 519,309, filed January 22, 1944i, now Patent No. 2,378,836, dated June 19, 19,45, in turn a continuation-inpart of the copending application, Serial No. 592,551, filed September 1 6, 1943, now Patent No. 2,378,835, dated June .9, 1M5, each being entitled Motor Vehicle and jack lifting connection, and each made a part hereof for the problems therein disclosed and the several solutions thereof.

The present invention is directed to other so lutions of all the problems recited in said conendi appl ations and patents.

The chief object of the present invention is to provide means carried b the vehicle and, which is of extremely simple character whereby through the instrumentality of an elevating member on a lack, an inextensible flexible m ans m e elevated to levate one corner of a vehicle for wheel tire replacement, repair, etc., and initially preload the vehiclesprin means to prevent com: p ete unloading t ereof no ma ly requi n ex: cessive elevation of the vehicle.

The chief feature of the present invention is to connect the frame and axle and/or a spring of the vehicle by .a structure that normally 19 n t i h bi ormal relative-moveme the ebewee and which truc ure. at an intermediate point between the fra andspring is connected h? a l e is qh. nianhet nb al direeftes an;

tehhi at i ad aeeht treatment and: o the vehi na'ne sh ely WQQBQWQ t hat nd f r conve nce, the l ter connection, when desired,

t he prsqn lent ies spangefto' anemones lng d efi, H 'Qther objects and features of the invention will'be set forth c'r 'ruu hereinafter. Y The full natiireof the'iii ntion will be under stood froin the accompanying drawin and the mom-11gdes riphena di a me .h e a' m 's Fig. 1' is asideelevational View of the rear end ofra vehicle, parts being' shown elevated and the invention applied thereto and in the correspond e hhsi ofh. d tt dfl es ndicatin he part exte d d pe eh- F 2 a the invention.

"Fig. 3 is a similar view of a further modified formof the invention. 1 In Fig. l of'the" drawings, l0 indicates a Vehicle frame to which is attached bumper ll.

similar View of a modified form of 2 !2 indicates a; vehicle-spring secured to axle [3; at t d suitab o t d a h remote and herein rear) end as by shackle means 15. Axle l3 mounts wheel l5 having tire ll, all the aforesaid being of standard construction.

Associated with the aforesaid a jack struc; te avi e 18 tand l3 evatable member 2% thereon, actuable by member 2|, T member 2i] is secured at 22 a flexible inextensible means 23 in the form of a chain. Herein same te m na es in ae k 2 T e e same. pa ts are similarly designated in Figs. 2 and 3 w A e r a d br adl is commo t the d o r s of h e end ne a p n-a Fig l flex i extehs bh c ble 25 i nchored at one end 2617c frame. it] by bracket 21, or an q v ent nne i n e other n of cable 25 is similarly rigidly connected to the axle Q,

H in. ano her e b e ext n ble t ble s ehhect d at to a intermedia e ne en 2 ca l Ztahsi x en s ther fr m toward he adjacent end of vehicle, passing, if desired, th ou sha k e a e na in n a. 1 r ring 32- A t ns on p in 33 he i n ored at on and 34.1 the b m r H, 9- q al part f the ve e a i p site end i p ma en ly a he 35.1w. n 3 r although this connection may be of snap-heel; or other detachable type as desired.

, Preferably in normal operation, spring 33; is

extended and maintains cable 30 in tension and ment the cable 25 straightens out and spring 33 extends further, Such extension servin to in}; pose a shockabsorbing action on the structure.

On rebound, as it were, spring 33 contracts and cable 25 assumes an angular position some: what similar to that shown in full lines in Fig. 1. When the invention is to be operated, for wheel tire change or like purposes, hook 24 is engaged with ring 32 and thus member of the jack is elevated on standard I 9.

This immediately draws cable 30 toward the bumper II and hence the portions of the cable assume a minimum angle position, see'full lines Fig. 1, so that vehicle spring I2 i properly. preloaded. This preloading prevents the axle moving away from the frame when the latter is elevated. Accordingly, the axle is raised as the member 20 and the frame is elevated. Hence, only a minimum total elevation is reduird for tire change,etc., purposes.

Upon effecting that change, etc., member 20. is

In Fig. 2 a cable I25 is anchored at one end to axle I3 as at I28. Its opposite end is connected to rigid member Ia intermediate the ends thereof. One end I2Ba is connected by link I26 suported by bracket I21 to the frame I0. Cable I30 with ring I32 at the remote end is tensioned by spring I33 and is connected at its opposite end 'I3Ia. to the other end of rigid member I25a.

necting the support member to the frame, said lifting structure comprising means connected at one end to the frame and at the opposite end to the support member and spring means, and tensioned means connectedfat one end to the second mentioned means intermediate the ends thereofwand having its'other end positioned adjacent the frame end portion, and means juxtapositioned to the frame end and connectible to the tensioned means adjacent the frame end thereof for tensioning said tensioned means, initial tensioning causing portions of the second.

mentioned means to assume different relative positions for preventing undue separation of the The operation of this form of the invention is substantially that previously described, except" that member I25a under elevation tensioning force applied at ring I32 tilts about the pivotal axis "coincident with end I26! and link I26 swings counterclockwise. I I

In Fig. 3 a still further embodiment is'illustrated. Herein link rod 226 is pivoted on the frame ID at 221. A bracket 225 is carried by plate 228 secured to the spring I2 as illustrated. A bell crank 225a is pivoted at 2251) on bracket 225;One end is connected at, 226a to link 226. The other end is connected at 23I to cable 20 tere minating in ringor loop 232, spring anchored as at 233 to the bumper II. V 7 Y7 The operation of this form is similar to the preceding form. Elevational tensioning force tiltsbell crank 2250, to hold the frame and wheel together to retain spring I9 preloaded as before and further force applied elevates same simultaneously.

'While the invention has been illustrated and described in great detail in the drawings and foregoing description, the same is to be consider'e'des illustrative and not restrictive in charactor. I v

The several modifications described herein as well as others which will readily suggest themselves to persons skilled in this art, all are considered to be within thebroad scope of the in-' vention, reference being had. to the appended claims.

T his invention relates to: j r r 3 1; A'lifting structure'for vehicles having a frame including a side and an end portion, a Wheel support member, andspring means connecting the support member to the frame, said lifting structure comprising means permanently connected at one end to the'frame and permanently at the opposite end to the support member andspring means, and tensioned means conframe and'support member upon frame elevation,

and subsequent tensioning causing simultaneous elevation of the frame and support member, the

second mentioned means comprising a cable, the tensioned means being connected at one end to said cable intermediate the ends thereof.

'-3."A liftingstructure'for vehicles having a frame including a side and an end 'portion,'a wheel support member, and spring means connecting the support member to the frame, said lifting structure comprising means connected at one end to the frame and at the opposite end to the support member and spring means, and tensioned means connected at one end to the second mentioned means intermediate the ends thereof and having its other.- end positioned adjacent the frame end portion, and mean-s juxtapositioned to the frame end and connectible to the'tensioned means adjacent the frame end thereof for tensioning, said tensioned'means, initial tensioning causing portions of the second mentioned means to assume different relative positions for pre: venting undue separation ofthe frame and support member'upon: frameelevation, and subse quent tensioning causing simultaneous elevation of the frame andsupport member, the second mentioned means comprising' a rigid member, a link, the link and member having end to'end pivotal connection, and a cable connected at one end to the rigid member between the ends there of, the remote *ends'of thelink and cable being 7 connected as defined-for said second mentioned means and said tensioned means being connected to the other end of the rigid member. 7 ii 4. A'" lifting structure for vehicles having a. frame including aside and an enjdjportion, a wheel support member, and spring means con 7 necting the support member to theframe, said A lifting structure for rvehicles having a a frame including a side and'an end portion, a wheelsupport member, and spring means conlifting structure comprising means connected at one end to the frame and at theopposite end to the support, member'and springm'ean-s, and tensioned means connected atone end ,to the second mentioned means intermediate the ends thereof and having its other end positioned adjacent the frame end portion, and means juxtaposi tioned tothe frame end and connectible to the tensioned means adjacentthe frame end thereof for tensioning said tensioned means, initial tensioning causing portions of the second mentioned means to assume different relative positions for V preventing u-ndueseparation of the frame and support member diaonfra'nieelevatioh, and sub'- sequent tensioning 1 causing simultaneous elevation of the frame and support membenfthe second mentioned means including a link, a bell crank and a bracket, the link being connected to one arm of. the bellcrank, the latter being pivotally supported by the bracket, the remote ends of the link and bracket'being connected as de-' fined for said second mentioned means andsaid 5 tensioned means being connected to the other arm of the bell crank.

5. A lifting structure for vehicles having a frame including a side and an end portion, a wheel support member, and spring means con= necting the support member to the frame, said lifting structure comprising mean-s connected at one end to the frame and at the opposite end to the support member and spring means, and tensioned means connected at one end to the secand mentioned means intermediate the ends thereof and having its other end positioned adjacent the frame end portion, and means juxtapositioned to the frame end and connectible to the tensioned means adjacent the frame end thereof for ten-sioning said tensioned means, initial tensioning causing portions of the second mentioned means to assume different relative positions for preventing undue separation of the frame and support member upon frame elevation, and subsequent tensioning causing simultaneous elevation of the frame and support member, a tensioning tie constantly connecting the frame and juxtapositioned end of the tensioning means to the adjacent end of the vehicle, the tensioning tie being relieved of tension when the support member and frame are initially caused to approach each other and when the support member, spring means and frame are simultaneously elevated by the subsequent ten-sioning of the third mentioned means by the fourth mentioned juxtapositioned means.

FREDRICK W. COFFING.

REFERENCES CITED The following referenices are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,782,400 Bolard Nov. 25, 1930 1,992,519 Chryst Feb. 26, 1935 20 2,009,632 Bramley-Moore July 30, 1935 2,092,719 Ryerson Sept. '7, 1937 

